package com.duoduo.mapper;

import com.duoduo.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Update;

import java.util.List;

@Mapper
public interface ShoppingCartMapper {

    /**
     * 根据shoppingCart的属性动态条件查询购物车数据
     */
    List<ShoppingCart> list(ShoppingCart shoppingCart);


    /**
     * 根据id更新购物车的number属性
     * @param cart：要修改的ShoppingCart数据
     */
    @Update("update shopping_cart set number = #{number} where id = #{id}")
    void updateNumberById(ShoppingCart cart);


    /**
     * 插入购物车数据
     * @param shoppingCart
     */
    @Insert("insert into shopping_cart (name, image, user_id, dish_id, setmeal_id, dish_flavor, amount, create_time, number) " +
            "VALUES (#{name},#{image},#{userId},#{dishId},#{setmealId},#{dishFlavor},#{amount},#{createTime},#{number})")
    void insert(ShoppingCart shoppingCart);

    /**
     * 根据userId删除购物车数据
     * @param userId
     */
    @Delete("delete from shopping_cart where user_id = #{userId}")
    void deleteByUserId(Long userId);

    /**
     * 根据id删除购物车数据
     * @param id
     */
    @Delete("delete from shopping_cart where id = #{id}")
    void deletById(Long id);

    /**
     * 批量插入购物车数据
     * @param list
     */
    void insertBatch(List<ShoppingCart> list);
}
